CLM

Common Lisp Music is a music synthesis and signal processing package
in the Music V family.
It runs in a number of lisps or as a part of Snd (using Scheme or Ruby).
The file README.clm has current status info for the Common Lisp versions.
The mailing list for clm news is cmdist@ccrma.stanford.edu.
Common Music, CMN, and the Snd
editor also use this list.